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Aleksandr [31]
3 years ago
5

what is an equation in slope intercept form for the line that passes through the points (1,-3) and (3,1)

Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0
Y=2x-5.
I found the slope using the formula m=y2-y1/x2-x1.
m=-3-1/1-3=-4/-2=2.

I used (3,1) (only use one point, your choice) to find out b. 3=x, 1=y.
y=mx+b is the formula for slope intercept equations, so I plugged in the x and y.
1=2(3)+b; 1=6+b, subtract 6 on both sides and get -5=b.
I used the information to get y=2x-5.
Hope this isn’t too confusing! :)
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I will gove brainlist ..The line graph shows the amount of water loss in a leaking tank during 7 hours.The owner pays $1for ever
kramer

Answer:

The owner will have to pay $ 125 after 2 hours.

Step-by-step explanation:

Given that the line graph shows the amount of water loss in a leaking tank during 7 hours, and the owner pays $ 1 for every 8 liters of water lost, to determine how much will he have to pay after 2 hours the following calculation must be performed :

((6000 - 5000) / 8) x 1 = X

(1000/8) x 1 = X

125 x 1 = X

125 = X

Therefore, the owner will have to pay $ 125 after 2 hours.

8 0
3 years ago
Steve's scores on 6 of his tests were 92, 78, 86, 92, 95, and 91. If he took a seventh test and raised the mean of his scores by
monitta

Answer:

96

Step-by-step explanation:

First we need to know the mean of the Steve's scores on 6 of his tests. Given the six scores as 92, 78, 86, 92, 95, and 91.

Mean = sum of the scores/Total test taken

Mean = 92+78+86+92+95+ 91/6

Mean = 534/6

Mean = 89

If he took the seventh test and the mean score is raised by 1 them the new mean will be expressed as;

New mean = 92+78+86+92+95+ 91+x/7 = 89+1

Where x is the new score. Note that of a new score is added, the total year taken will also change to 7

To get x;

92+78+86+92+95+ 91+x/7 = 89+1

92+78+86+92+95+ 91+x/7 = 90

534+x/7 = 90

Cross multiply

533+x = 90×7

533+x = 630

x = 630-534

x = 96

Hence the score of the seventh test is 96

8 0
3 years ago
A boy flying a kite lets out 300 feet of string, which makes an angle of 38o with the ground. Assuming that the string is straig
Greeley [361]

Answer:

The answer is 184.7 ft

Step-by-step explanation:

You need to find the distance from kite to ground

sin38°/1 = x/300

x = 300 · sin 38

Therefore your answer is 184.7

This is the best way I could explain it....Hope this helps:)

4 0
2 years ago
I can't figure it out​
kap26 [50]

Answer:

the first one

Step-by-step explanation:

this picture has the workings

8 0
3 years ago
If correct I’ll give brainlist no links or I’ll report
OLEGan [10]
I think it would be y=1x+(0-2)
4 0
3 years ago
Read 2 more answers
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